To link to another site by a word you need to add the code when you load your document in the compose mode of blogger.
For example, I want to link one of my blog entries, say Watching Weight and a craving, I would click on that entry and copy the URL that is on the top of the screen.
Then this is code I would write, which I could show you only in the click of the post before I published it. The word Methi Dal would appear like this: Methi Dal
I hope I have explained the code coherently enough. If not the photo should do it.
Let me know if I need to clarify or explain any other details. Those of you who are more adept in computer languages, do let me know if there is another way to do this.